I am voting for this, not only for camera groups but for individual cameras on the home page too.
It is too easy to accidentally click the On/Off buttons on the home page while scrolling up and down through the list of cameras. And then it is too easy not to notice you (or someone else you’ve shared the cameras with) has done so until many hours or days later.
I’d prefer the On/Off buttons weren’t displayed on the home screen at all. But other options such as requiring a long press or a confirmation message would suffice too. Another idea could be to add a setting, either account-level or per-camera level, as to whether or not to display the On/Off toggle buttons on the home screen.
While searching, I found these related wish list items which could possibly be merged with this one: